Graphite nanosheet/polyaniline nanocomposites: Effect of in situ polymerization and dopants on the microstructure, thermal, and electrical conduction properties

Martin, Eliza Sbrogio; Sanches, Adhemar; Maraschin, Thuany Garcia; Basso, Nara Regina Souza; Paula, F. R. de; Malmonge, José Antônio

doi:10.1002/app.52363

Cited by 3 publications

(1 citation statement)

References 87 publications

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“…It has good environmental stability, is converted from a conducting to a nonconducting state under a reversible acidic-basic reaction and turns into other oxidative states under a simple oxidation–reduction process . The electrical, electrochemical, and optical properties have made polyaniline an attractive material for use in electronic devices and anticorrosion coatings. − Due to their efficient physical and chemical propertiescreating interfacial spaces and having high electrochemical activitypolyaniline nanocomposites perform well in chemical sensors, biosensors, solar cells, and supercapacitors. − …”

Section: Introductionmentioning

confidence: 99%

Synthesis of Polyaniline/Cadmium Sulfide Hybrid Nanocomposites via a One-Pot Process: Morphology Control for Improvement of Photovoltaic Performance

Jarrahi

Farzi

Fischer

2023

ACS Appl. Electron. Mater.

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In this work, the one-pot process was employed to synthesize polyaniline/cadmium sulfide hybrid nanocomposite. Herein, for the first time, we report a comprehensive study from the synthesis of the raw materials to the photovoltaic cell performance investigation including the synthesis of the polyaniline/cadmium sulfide hybrid nanocomposite through a one-pot process, a morphology study, the fabrication of a hybrid organic/inorganic solar cell, and the evaluation of the cell performance. To this end, the CdS-to-PANI weight ratio was considered as a key parameter, and 0, 2.5, 5, 10, 15, 20, and 40% were used as the CdS values. FTIR, XRD, and FESEM analyses confirmed that the presence of CdS in the PANI nanotubular network affected the morphology of the hybrid nanocomposite, and changing the CdS-to-PANI ratio tuned the nanotubular network morphology from coarse to fine. UV–visible absorption spectrum studies validated the reduction of PANI bandgap due to the presence of CdS. Likewise, the conductivity of the nanocomposites was also improved compared to neat PANI due to the increasing of charge density. These controlled-morphology nanocomposites were used for organic/inorganic hybrid solar cells based on the configuration of the FTO/ZnO/CdS@PANI/Ag device, and the morphology effects on their performance were investigated. When CdS was incorporated in the PANI nanotubular network, J SC and efficiency increased by, respectively, 4.471 mA·cm–1 and 1.87%. This means a 22-fold increase in J SC and a 1700-fold increase in the solar cell based on 20%CdS@PANI compared to those in the solar cell made with pure PANI. In short, by using the one-pot process, it is possible to hierarchically ensure better control of the morphology of organic and inorganic components, increasing the light absorption edge, reducing the bandgap, and improving the photovoltaic performance of CdS@PANI organic–inorganic hybrid nanocomposites.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Polyaniline/Cadmium Sulfide Hybrid Nanocomposites via a One-Pot Process: Morphology Control for Improvement of Photovoltaic Performance

Jarrahi

Farzi

Fischer

2023

ACS Appl. Electron. Mater.

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Effect of calcium silicate on foaming and anti‐shrinkage behavior of thermoplastic polyamide elastomers: Revelation of the open‐cell mechanism

Ma,

Zhai,

Zhao

et al. 2024

J of Applied Polymer Sci

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Thermoplastic polyamide elastomer (TPAE)/calcium silicate (CaSiO3) open‐cell foam with low shrinkage and high expansion ratio was prepared by using supercritical CO2 as a blowing agent. Adding CaSiO3 led to increased melt viscoelasticity and reduced crystallinity of TPAE. The primary mechanism of CaSiO3 promoting TPAE foam to form the open‐cell structure was discussed. The interaction between CaSiO3 and TPAE is fragile, making CaSiO3 easy to fall off the cell wall and form the open‐cell structure during foaming process. The increasing CaSiO3 content leads to increased cell density and thinned cell walls, thus increasing the tensile stress on cell wall. On the other hand, the agglomeration of CaSiO3 increases particle size, making it easier to fall off from the adhesion of TPAE matrix. The two aspects work together to improve the open‐cell content of TPAE foam up to 93.28%. The open‐cell structure is conducive to increasing the gas exchange rate and significantly decreasing foam shrinkage ratio. Finally, TPAE foam with a shrinkage ratio of only 2.68% and an expansion ratio of 18.77 times was obtained. In addition, open‐cell structure improves the adsorption performance of TPAE/CaSiO3 foam by 500%.

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Polycrystalline phases grown in-situ engendering unique mechanism of charge storage in polyaniline-graphite composite

Mahato,

Singh,

Faisal

et al. 2023

Synthetic Metals

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Graphite nanosheet/polyaniline nanocomposites: Effect of in situ polymerization and dopants on the microstructure, thermal, and electrical conduction properties

Cited by 3 publications

References 87 publications

Synthesis of Polyaniline/Cadmium Sulfide Hybrid Nanocomposites via a One-Pot Process: Morphology Control for Improvement of Photovoltaic Performance

Synthesis of Polyaniline/Cadmium Sulfide Hybrid Nanocomposites via a One-Pot Process: Morphology Control for Improvement of Photovoltaic Performance

Effect of calcium silicate on foaming and anti‐shrinkage behavior of thermoplastic polyamide elastomers: Revelation of the open‐cell mechanism

Polycrystalline phases grown in-situ engendering unique mechanism of charge storage in polyaniline-graphite composite

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